Vehicle Headlamp Apparatus with Rotating Shielding Part
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Solution Overview
Problem
Conventional vehicle headlamps with LED sources face challenges in securing driver visibility while minimizing dazzling of other drivers, often requiring separate upper and lower lighting units, leading to increased size and complexity.
Innovation Solution
A headlamp apparatus with a single LED light source, a rotating reflective plate, and a lens unit that adjusts light distribution based on a sensor's distance measurements to switch between upward and downward lighting, reducing size and components while preventing dazzling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If separate upper and lower headlight units are installed to achieve upward and downward lighting, then driver visibility is secured, but the size of the headlamp apparatus increases
Solution Approach 1:
The patent combines upper and lower lighting functions into a single headlamp apparatus by using a rotatable shielding part with reflective plates that can redirect light from a single LED source to create both upward and downward lighting patterns, eliminating the need for separate headlight units
Solution Approach 2:
The patent employs a rotatable shielding part that can dynamically adjust its position to switch between upward lighting mode (for driver visibility) and downward lighting mode (to prevent dazzling), allowing a single static headlamp apparatus to perform multiple lighting functions
2Adaptability or versatility
If separate upper and lower headlight units are installed, then lighting functions are achieved, but the number of assembly components increases
Solution Approach 1:
The single headlamp apparatus is designed to perform multiple lighting functions (upward lighting, downward lighting, and intermediate patterns) through a rotatable shielding part with multiple reflective plates positioned at different angles, allowing one component to replace multiple specialized units
Solution Approach 2:
Multiple lighting functions that would traditionally require separate headlight units are merged into a single apparatus by using a rotatable shielding mechanism that redirects light from one LED source to create various lighting patterns
3Illumination intensity
If upward lighting is performed to secure driver visibility, then driver vision is improved, but dazzling of approaching drivers occurs
Solution Approach 1:
The rotatable shielding part can dynamically switch between upward lighting mode (when no approaching vehicles are detected) and downward lighting mode (when approaching vehicles are detected), allowing the system to adapt to traffic conditions and eliminate dazzling while maintaining driver visibility when safe
Solution Approach 2:
The control unit receives feedback from sensors detecting approaching vehicles and automatically adjusts the shielding part's position to switch between upward and downward lighting modes, creating a closed-loop system that responds to environmental conditions
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables efficient upward and downward lighting with a single headlamp, reducing size and manufacturing costs, while ensuring driver visibility without dazzling other drivers, enhancing safety and stability.
Implementation Method 1
a light emitting diode (LED) light source located at a first focal point and emitting light
Implementation Method 2
a reflective plate reflecting light to enter the lens unit when the light is reflected by the reflecting member and travels towards the second focal point
Implementation Method 3
a lens unit disposed in front of the LED light source and allowing light to pass therethrough
Implementation Method 4
a cooler disposed under the LED light source to cool the LED light source
Data Source
AI summary
The present disclosure relates to a headlamp apparatus for vehicles. The headlamp apparatus includes a light emitting diode (LED) light source located at a first focal point and emitting light, a reflecting member surrounding the LED light source and reflecting light emitted from the LED light source, a lens unit disposed in front of the LED light source and allowing light to pass therethrough, a cooler disposed under the LED light source to cool the LED light source and having a leading end located behind a second focal point, a shielding part rotatably disposed at the second focal point between the LED light source and the lens unit within a lamp housing, and a drive unit connected to the shielding part to rotate the shielding part.